资料介绍
The LTC®4446 is a high frequency high voltage gate driver
that drives two N-channel MOSFETs in a DC/DC converter
with supply voltages up to 100V. The powerful driver ca-
pability reduces switching losses in MOSFETs with high
gate capacitance. The LTC4446’s pull-up for the top gate
driver has a peak output current of 2.5A and its pull-down
has an output impedance of 1.2Ω. The pull-up for the bot-
tom gate driver has a peak output current of 3A and the
pull-down has an output impedance of 0.55Ω.
The LTC4446 is confi gured for two supply-independent
inputs. The high side input logic signal is internally
level-shifted to the bootstrapped supply, which may
function at up to 114V above ground.
The LTC4446 contains undervoltage lockout circuits that
disable the external MOSFETs when activated.
The LTC4446 is available in the thermally enhanced 8-lead
MSOP package.
The LTC4446 does not have adaptive shoot-through pro-
tection. For similar drivers with adaptive shoot-through
protection, please refer to the chart below.
that drives two N-channel MOSFETs in a DC/DC converter
with supply voltages up to 100V. The powerful driver ca-
pability reduces switching losses in MOSFETs with high
gate capacitance. The LTC4446’s pull-up for the top gate
driver has a peak output current of 2.5A and its pull-down
has an output impedance of 1.2Ω. The pull-up for the bot-
tom gate driver has a peak output current of 3A and the
pull-down has an output impedance of 0.55Ω.
The LTC4446 is confi gured for two supply-independent
inputs. The high side input logic signal is internally
level-shifted to the bootstrapped supply, which may
function at up to 114V above ground.
The LTC4446 contains undervoltage lockout circuits that
disable the external MOSFETs when activated.
The LTC4446 is available in the thermally enhanced 8-lead
MSOP package.
The LTC4446 does not have adaptive shoot-through pro-
tection. For similar drivers with adaptive shoot-through
protection, please refer to the chart below.
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